Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ACCESSORY RELAY POWER SUPPLY-1
- Turn ignition switch OFF.
- Disconnect accessory relay.
- Check voltage between accessory relay harness connector and ground.VOLTAGE SPECIFICATION
(+) (-) Condition Voltage (V) (Approx.) Accessory relay Terminal 1 Ground Ignition switch OFF 0 ACC Battery voltage Is the inspection result normal?
YES: Go to 3.
NO: Go to 2.
- CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connector.
- Check continuity between accessory relay harness connector and BCM harness connector.CONTINUITY SPECIFICATION
Accessory relay BCM Continuity Terminal Connector Terminal 1 M122 95 Existed - Check continuity between accessory relay harness connector and ground.CONTINUITY SPECIFICATION
Accessory relay Ground Continuity Terminal 1 Not existed Is the inspection result normal?
YES: Go to 6.
NO: Repair or replace harness.
- CHECK ACCESSORY RELAY GROUND CIRCUIT
- CHECK ACCESSORY RELAY POWER SUPPLY CIRCUIT-2
- Turn ignition switch ACC.
- Check voltage between accessory relay harness connector and ground.VOLTAGE SPECIFICATION
(+) (-) Voltage (V) (Approx.) Accessory relay Terminal 5 Ground Battery voltage Is the inspection result normal?
YES: Go to 5.
NO: Check continuity open or short between accessory relay and battery.
- CHECK ACCESSORY RELAY
Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: Go to 6.
NO: Replace accessory relay.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
INSPECTION END